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Forum: Marin's Mersenne-aries 2021-06-15, 14:12
Replies: 16
Views: 1,422
Posted By kriesel
From https://www.mersenne.org/report_milestones/ ...

From https://www.mersenne.org/report_milestones/

Progress toward next GIMPS milestones (last updated 2021-06-15 14:00:07 UTC, updates every 15 minutes)


All exponents below...
Forum: PrimeNet 2021-06-15, 03:00
Replies: 6
Views: 191
Posted By kriesel
Go for the GPU72 bounds or at least the PrimeNet...

Go for the GPU72 bounds or at least the PrimeNet bounds https://www.mersenne.ca/exponent/332194529 for example
or use the calculator at...
Forum: Marin's Mersenne-aries 2021-06-14, 13:39
Replies: 705
Views: 91,759
Posted By kriesel
Took: Cat 1 DoubleCheck=57826103,74,1 ...

Took:
Cat 1
DoubleCheck=57826103,74,1
DoubleCheck=57836777,74,1

The estimated run time is ~11 days in Gpuowl on a RadeonVII for the 100Mdigit P-1 batch of 31, and one factor has already been...
Forum: Lounge 2021-06-14, 13:20
Replies: 1,736
RIP
Views: 164,457
Posted By kriesel
To be despised by billions is not better than...

To be despised by billions is not better than anonymity.
Forum: Hardware 2021-06-13, 23:00
Replies: 195
Views: 26,278
Posted By kriesel
I'm pretty sure Cray didn't change the 7250...

I'm pretty sure Cray didn't change the 7250 design, or they'd be calling it something else. So I think it's safe to rely on Intel's specs for it remaining constant regardless of the info source.
It...
Forum: Lounge 2021-06-13, 18:18
Replies: 25
Views: 514
Posted By kriesel
Simplistic reductio ad absurdum, derivative of...

Simplistic reductio ad absurdum, derivative of earlier works, lacking originality or artistry, the nadir of sloth, by a charlatan vainly posing as an artist. Lucrative for him though. The buyer...
Forum: Hardware 2021-06-13, 17:22
Replies: 195
Views: 26,278
Posted By kriesel
This Cray KNL slide set...

This Cray KNL slide set (https://www.nersc.gov/assets/Uploads/Using-KNL-Processors-Feb2019.pdf) is interesting.

Cache mode: https://docs.nersc.gov/performance/knl/cache-mode/

Optimizing:...
Forum: Hardware 2021-06-13, 13:24
Replies: 195
Views: 26,278
Posted By kriesel
Congrats. What do available utilities say about...

Congrats.
What do available utilities say about the memory mode, cache layout etc.?
Is that still on CentOS v8.2?
How about a quick mprime benchmark on the same inputs?
Forum: Lounge 2021-06-12, 19:36
Replies: 25
Views: 514
Posted By kriesel
:tu::book:Reminds me of...

:tu::book:Reminds me of https://en.wikipedia.org/wiki/The_Emperor%27s_New_Clothes.
How much would you (a1call) be willing to pay for the world's shortest computer program? (NOP)
Forum: Hardware 2021-06-12, 18:24
Replies: 195
Views: 26,278
Posted By kriesel
F30 @64M FFT; F33 is ~8x larger; did you perhaps...

F30 @64M FFT; F33 is ~8x larger; did you perhaps mean F32 @256M there or F33 @512M?
Any news of DIMMS-added 7250 Phi performance (and any BIOS tweaks necessary to get it) would be welcome.
Forum: Languages -- Ancient & Modern, Human & Machine 2021-06-12, 16:44
Replies: 16
Views: 5,498
Posted By kriesel
The most irrational number

https://slate.com/technology/2021/06/golden-ratio-phi-irrational-number-ellenberg-shape.html What's a golden links thread without a golden ratio link?
Forum: Lounge 2021-06-12, 12:34
Replies: 1,004
Views: 88,687
Posted By kriesel
Imagine the fuel stream as a cylinder the vehicle...

Imagine the fuel stream as a cylinder the vehicle consumes as it travels. A 20mpg vehicle corresponds to ~0.5mm fuel stream, a 50mpg vehicle ~0.3mm like fine technical pencil lead. The crawler...
Forum: Marin's Mersenne-aries 2021-06-11, 23:46
Replies: 12
Views: 46,090
Posted By kriesel
I estimated 1 in 30 would get factored and...

I estimated 1 in 30 would get factored and eliminate need for a PRP. 40:1 P-1 might be equal effort.

I've reserved these 31 in P-1 and will also TF the survivors as below.
...
Forum: Marin's Mersenne-aries 2021-06-11, 22:06
Replies: 12
Views: 46,090
Posted By kriesel
30 TF from 78 to 81 bits at 100Mdigit? Or 30 P-1...

30 TF from 78 to 81 bits at 100Mdigit? Or 30 P-1 to adequate bounds?
Forum: Marin's Mersenne-aries 2021-06-11, 20:30
Replies: 705
Views: 91,759
Posted By kriesel
FWIW (not much), the 0-shift LL run on M332250197...

FWIW (not much), the 0-shift LL run on M332250197 had no Jacobi check errors indicated in the gpuowl.log. I'd like to see a matching LL on this one to help define 100Mdigit LL error rate better. But...
Forum: kriesel 2021-06-11, 18:26
Replies: 10
Views: 432
Posted By kriesel
Indications of a scam/scammer

Before purchase:
1) price very low (although it can be a challenge to judge what is too low when scams proliferate, substantially polluting the spectrum of pricing data)
2) new seller account (a...
Forum: Hardware 2021-06-10, 21:28
Replies: 195
Views: 26,278
Posted By kriesel
Chalsall, I left you links. Ernst was rewarded...

Chalsall, I left you links. Ernst was rewarded for Ubuntu install on 7250 Xeon Phi with what he called "purple screen of death". The cpu and motherboard is unusual hardware which not everything...
Forum: Hardware 2021-06-10, 19:47
Replies: 195
Views: 26,278
Posted By kriesel
Ubuntu won't do, because I'm trying to accomplish...

Ubuntu won't do, because I'm trying to accomplish the same or very close environment (https://mersenneforum.org/showpost.php?p=564501&postcount=117) as Ernst settled on for Mlucas development and...
Forum: PrimeNet 2021-06-10, 19:06
Replies: 11
Views: 425
Posted By kriesel
Right, because CentOS8.3 is reliably refusing to...

Right, because CentOS8.3 is reliably refusing to install at all on a test system I have. It has rejected 3 different verified repository URLs in 5 of 5 attempts so far, and refused to progress any...
Forum: Astronomy 2021-06-10, 17:26
Replies: 42
Views: 3,251
Posted By kriesel
Open air carbon arcs are pretty effective at...

Open air carbon arcs are pretty effective at close range too. (center electrodes from 2 dead zinc dry cells, on a 110v AC power cord; do not try this at home or elsewhere, alone, or without proper...
Forum: MattcAnderson 2021-06-10, 13:33
Replies: 11
Views: 324
Posted By kriesel
"I've always said there was something...

"I've always said there was something fundamentally wrong with the universe." https://en.wikipedia.org/wiki/The_Hitchhiker%27s_Guide_to_the_Galaxy#The_Restaurant_at_the_End_of_the_Universe seems to...
Forum: Astronomy 2021-06-10, 13:19
Replies: 42
Views: 3,251
Posted By kriesel
It's not wrong, to want to believe in someone's...

It's not wrong, to want to believe in someone's skill and integrity. Full-on pessimistic paranoia is an unpleasant way to go through life.

On the other hand, perhaps it's just as well the fakery...
Forum: Lounge 2021-06-10, 13:07
Replies: 865
Views: 76,638
Posted By kriesel
Vacation? And isn't that what SSH, remote...

Vacation?
And isn't that what SSH, remote desktop, and VPN are for?
Forum: MattcAnderson 2021-06-10, 10:13
Replies: 11
Views: 324
Posted By kriesel
https://en.wikipedia.org/wiki/42_(number) What...

https://en.wikipedia.org/wiki/42_(number)
What is 6 x 9. The world scale computer's specifications included a nonzero error rate.
Forum: PrimeNet 2021-06-10, 09:20
Replies: 11
Views: 425
Posted By kriesel
Buy prime95 some time by pausing Windows 10...

Buy prime95 some time by pausing Windows 10 updates. Settings, Updates & Security, "pause updates for 7 days" adds a week of delay per click. Up to 4 weeks as I recall.

I receive an email alert...
Showing results 1 to 25 of 1000

 
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